Re: [gentoo-user] Recently reduced video/render performance

[Volker Armin Hemmann <volkerarmin@googlemail.com>]

On Wednesday 18 May 2011 16:59:13 Florian Philipp wrote:
> Hi list!
> 
> Since updating to mplayer and KDE to current stable
> (media-video/mplayer-1.0_rc4_p20101114 and kde-4.6), I notice two
> performance regressions:
> 
> 1. The system can no longer handle videos with VGA resolution or higher
> at 25 FPS (I'm talking about a Core i5 with corresponding intel
> graphics, btw).
> 2. glxgears reports
> "Running synchronized to the vertical refresh.  The framerate should be
> approximately the same as the monitor refresh rate.
> 291 frames in 5.0 seconds = 58.121 FPS"
> 
> So, even if it is running vsync, 58 FPS is definitely not the refresh
> rate. Previously, it has been around 1000 FPS or something like this.
> 
> I don't believe mplayer is really the problem since VLC also has this
> problem and ffmpeg was not updated.
> 
> Does anyone else experience this? I don't have an xorg.conf file. Do I
> need to make some settings since updating KDE?
> 
> Thanks in advance!
> Florian Philipp

you have vsync turned on. Turn it off.